Improvement in wrenches



G J. CAPEWBLL.

WRENCH.

No. 98,8'47. PatentedJam 148, 1870.

W e gg? m N btard gottes @wat @Wim GEORGE J. CAPEWELL, or WEST CHEsHInE, CONNECTICUT.

Letters Patent No.'98,847, dated Janna/ry 18,1870.

To 'whom it may concern Bez-it known that I, GEORGE J. GAPEWELL, of West Cheshire, in the county of New Haven, and State of Connecticut, have, as I believe, invented new and useful Improvements in Wrenches; and l do hereby declare the following to be a full and exact description of the same, reference being had to the drawings that accompany and form a part of these specifications.

Figure 1, view of wrench laid open, exhibiting some parts in section.

Figure 2, aview of wrench, differing in structure from that represented in Iig. 1iu that the outer jaw is stationary, while the inner one is movable back and orth.

Figure 3, a `section from tig. 1, cut on line a: x.

Figure 4, hammer-face side of the wrench presented by iig. 2.

Letter A represents the handle, and is of metal.

Letter B, outer 'end of said handle A, and in such form as toy constitute one of the jaws oft-he wrench.

Letter C, the ot-her jaw for clasping the nut-.to be turned.4

Letter D, a plane-sided bar sliding into an opening made longitudinally withinthe handle A, and just titting thereto.

'Letter e, a spindle extending from the inner end of D, entering the coil of spring f.

Letter j, a coil springrlying in the, hollow. or opening of handle A.

Letter g, a small slot in one side of this said handle.

Letter h, a pin or screw to limit the extent to which the spring f shall force out the `jaw C.

Letter I, a thumb-nut with ratchet-cut threads, and hung upon spindle J. l Letter' J, a spindlewith an enlarged base for tbe pntle m, and keeping coil-spring n.

Letter m, a pintle keeping the spindle J, Y,but allowing it to he swung ont, as indicatedv by the dotted lines in iig. l. y

Lettera, a small spiral spring, whose legitimate object is to keep the nut I in the position exhibited in figs. 1 and 2, that is, with its threads meshing into the teeth on the bars D and S.

Letter o, ratchet-like notches upon the har D, and on the bar S, which receive the threads of thenut I.

In fig. 2, R. is the handle of thc wrench, and may be of wood, and any desired length.

S, a metal bar attached to and extending from the handle R, with the outer end formed for service, as one of the jaws ot' the wrench, and is the fixed one of the two; and y V '1` designated bythe letter T.

U, the movable jaw sliding upon the bar S.

'.lhe thumb-nut is indicated by the letter I; the supporting-spindle by letter J and the keeping-spring by letter n, the same as in tig 1, these parts, both in structure and functions, being common to both pat--I terns of wrench.

by fig. 1, the nut I is moved to the position indicated by dotted lines', when the outer jaw G is, by force of spring j; promptly carried to its outermost position, as represented by dotted lines No. 2, in fig. 1; hence a very quick transfer from the closed position of dott-ed lines No. l, and complete adaptedness to different sides y of nuts readily secured.

The uutI, by the connection of its screw-threads with the ratchet-teeth o, holds the bar D, and thus the jaw C, gor the time fixed, as may be seen in black full lines in g. 1.

Furthermore, any nice or slight adjustment of the jaws to size ot' the nut to be turned, is eeot'ed by rotating the thumb-nut I upon its spindle J.

In the form given in fig. 2, the outer jaw 'l is the fixed one, and the inner one, U, the movable one, and may be slipped at once from one extreme to the other, on bar S,.or to any extent desired, simply by bringing the unt I to the position indicated by dotted lines in lig. 1, as in that position the threads of' this said nut and the teeth on the bar S do not engage each other. y For moving the jaw U but slightly at any one time, the nut I should be rotated by thumb and finger, either to open or close, as the case may require.

My invention consists iuv certain improvements inv the methods or devices adapted for -opening and closing, and also of adj nstingthe jaws of a wrench to the object it engages, and is formed in the device, described and illustrated,.tor the prompt transfer oi' the movable jaw from one extreme to another, not waiting 'the slow process of screw-threads, but nevertheless retaining the threaded nut for slight adjustments, and to hold to fixed position, as n this specification fully described and set forth.

What I cla-im as of my invention, and desire to secure by Letters Patent, is- I l. The keeping and adjusting-nut I, when attachedy to either the fixed par; B, in tig. 1, or the movtble` jaw U, in tig. 2, bythe supporting-spindle J, and arranged to operate as specified.l

2. The hollow handle A, when provided with' the 

